Implemented Automatic Parting on Groom nodes, this uses an angle threshold to automatically modulate strand weights to make creating hair parts more easily.

Part Randomness parameter will now modulate the painted part_randomness attribute on Grooms.

integrated a new Volumetric guide model, all guides will default to this with the option to toggle between Volumetric (defalut) and Shape Matching (original) on each input guide curve.

re-implemented Twist into new Volumetric guide model.

added Random Twist as a new guide curve parameter.

replaced Base and Tip Attraction with an Attraction Profile using a curve to define the shape along the length of the input Guide.

added Max Clump Influences to the Guide node, by default it is 1 (as previous releases) but this allows users to increase the number of guides used for clumping (Attraction).

added a new File node to read external geometry (Curves and Meshes) into the graph via Alembic files.

added Alembic Exporter to pgYetiCommand using the -writeAlembic argument, this will write an evaluated Yeti node into an Alembic file across a frame range including multiple time samples.

A nodes Render density, width and length will be used by default when exporting an Alembic cache but can be overridden with the -alembicDensity, -alembicWidth and -alembicLength command line parameters.